This has happened to me when I was interviewing therapist. A simply "history" became a re-traumatizing event. In one way it was my fault because my pdoc told me beforehand that I did NOT have to answer any question I was not comfortable with. However the problem with that is I didn't know how uncomfortable I was until that night when I started waking up having panic attacks. There were things I discussed that I have never discussed with any human being, so bringing them suddenly to the "front" of my memories was horrible.

I feel for you.